Android通用搜索页的分析与封装配套资源

package com.example.junweiliu.commonlysearchview.widget; import android.content.Context; import android.content.res.TypedArray; import android.graphics.Bitmap; import android.graphics.Canvas; import android.graphics.drawable.BitmapDrawable; import android.graphics.drawable.Drawable; import android.text.Editable; import android.text.TextWatcher; import android.util.AttributeSet; import android.view.LayoutInflater; import android.view.View; import android.widget.BaseAdapter; import android.widget.EditText; import android.widget.ImageView; import android.widget.LinearLayout; import com.example.junweiliu.commonlysearchview.R; import java.util.ArrayList; import java.util.List; /** * Created by junweiliu on 16/5/31. */ public class CommolySearchView<T> extends LinearLayout { /** * 上下文 */ private Context mContext; /** * 编辑框 */ private EditText mEditText; /** * 清除按钮 */ private ImageView mClearImg; /** * 搜索图标 */ private ImageView mSearchBarImg; /** * 适配器 */ private BaseAdapter mAdapter; /** * 数据源 */ private List<T> mDatas = new ArrayList<T>(); /** * 数据源副本 */ private List<T> mDupDatas = new ArrayList<T>(); /** * 筛选后的数据源 */ private List<T> mFilterDatas = new ArrayList<T>(); /** * 筛选后的数据源副本 */ private List<T> mDupFilterDatas = new ArrayList<T>(); /** * 搜索图标 */ private Bitmap mSearchIcon; /** * 搜索框距离左边边距 */ private int mSearchIconMarginLeft; /** * 搜索框距离右边边距 */ private int mSearchIconMarginRight; /** * 清除图标 */ private Bitmap mClearIcon; /** * 清除图标距离左边边距 */ private int mClearIconMarginLeft; /** * 清除图标距离右边边距 */ private int mClearIconMarginRight; /** * 搜索文字大小 */ private int mSearchTextSize; /** * 搜索文字颜色 */ private int mSearchTextColor; /** * 回调接口 * * @param <T> */ public interface SearchDatas<T> { /** * 参数一:全部数据,参数二:筛选后的数据,参数三:输入的内容 * * @param datas * @param filterdatas * @param inputstr * @return */ List<T> filterDatas(List<T> datas, List<T> filterdatas, String inputstr); } /** * 回调 */ private SearchDatas<T> mListener; /** * 设置回调 * * @param listener */ public void setSearchDataListener(SearchDatas<T> listener) { mListener = listener; } public CommolySearchView(Context context) { this(context, null); } public CommolySearchView(Context context, AttributeSet attrs) { this(context, attrs, 0); } public CommolySearchView(Context context, AttributeSet attrs, int defStyleAttr) { super(context, attrs, defStyleAttr); mContext = context; // 自定义属性 TypedArray ta = context.obtainStyledAttributes(attrs, R.styleable.CommolySearchView); Drawable searchD = ta.getDrawable(R.styleable.CommolySearchView_SearchBarIconSrc); mSearchIcon = drawableToBitamp(searchD); mSearchIconMarginLeft = px2dip(context, ta.getDimensionPixelOffset(R.styleable.CommolySearchView_SearchBarIconMarginLeft, 0)); mSearchIconMarginRight = px2dip(context, ta.getDimensionPixelOffset(R.styleable.CommolySearchView_SearchBarIconMarginRight, 0)); Drawable clearD = ta.getDrawable(R.styleable.CommolySearchView_ClearIconSrc); mClearIcon = drawableToBitamp(clearD); mClearIconMarginLeft = px2dip(context, ta.getDimensionPixelOffset(R.styleable.CommolySearchView_ClearIconMarginLeft, 0)); mClearIconMarginRight = px2dip(context, ta.getDimensionPixelOffset(R.styleable.CommolySearchView_ClearIconMarginRight, 0)); mSearchTextSize = px2sp(context, ta.getDimensionPixelOffset(R.styleable.CommolySearchView_SearchTextSize, 0)); mSearchTextColor = ta.getColor(R.styleable.CommolySearchView_SearchTextColor, 0); ta.recycle(); // 绑定布局文件 LayoutInflater.from(context).inflate(R.layout.searchview_layout, this); initView(); } /** * 初始化控件 */ private void initView() { mEditText = (EditText) findViewById(R.id.et_search); mClearImg = (ImageView) findViewById(R.id.iv_search_clear); mSearchBarImg = (ImageView) findViewById(R.id.iv_search_icon); // 处理自定义属性 if (0 != mSearchIconMarginLeft || 0 != mSearchIconMarginRight) { mSearchBarImg.setPadding(mSearchIconMarginLeft, 0, mSearchIconMarginRight, 0); } if (0 != mClearIconMarginLeft || 0 != mClearIconMarginRight) { mClearImg.setPadding(mClearIconMarginLeft, 0, mClearIconMarginRight, 0); } if (null != mSearchIcon) { mSearchBarImg.setImageBitmap(mSearchIcon); } if (null != mClearIcon) { mClearImg.setImageBitmap(mClearIcon); } if (0 != mSearchTextSize) { mEditText.setTextSize(mSearchTextSize); } if (0 != mSearchTextColor) { mEditText.setTextColor(mSearchTextColor); } // 清空按钮处理事件 mClearImg.setOnClickListener(new OnClickListener() { @Override public void onClick(View view) { mEditText.setText(""); mClearImg.setVisibility(View.GONE); if (null != mDatas) { mDatas.clear(); } mDatas.addAll(mDupDatas); mAdapter.notifyDataSetChanged(); reSetDatas(); } }); // 搜索栏处理事件 mEditText.addTextChangedListener(new TextWatcher() { @Override public void beforeTextChanged(CharSequence charSequence, int i, int i1, int i2) { } @Override public void onTextChanged(CharSequence charSequence, int i, int i1, int i2) { // 获取筛选后的数据 mFilterDatas = mListener.filterDatas(mDupDatas, mFilterDatas, charSequence.toString()); if (charSequence.toString().length() > 0 && !charSequence.toString().equals("")) { mClearImg.setVisibility(View.VISIBLE); } else { mClearImg.setVisibility(View.GONE); } if (null != mDatas) { mDatas.clear(); } mDatas.addAll(mFilterDatas); mAdapter.notifyDataSetChanged(); reSetDatas(); } @Override public void afterTextChanged(Editable editable) { } }); } /** * 获取筛选后的数据 * * @return */ public List<T> getFilterDatas() { return (null != mDupFilterDatas && mDupFilterDatas.size() > 0) ? mDupFilterDatas : mDupDatas; } /** * 重置数据 */ private void reSetDatas() { if (null != mFilterDatas) { if (null != mDupFilterDatas) { mDupFilterDatas.clear(); mDupFilterDatas.addAll(mFilterDatas); } mFilterDatas.clear(); } } /** * 设置数据源 * * @param datas */ public void setDatas(List<T> datas) { if (null == datas) { return; } if (null != mDatas) { mDatas.clear(); } if (null != mDupDatas) { mDupDatas.clear(); } mDatas = datas; mDupDatas.addAll(mDatas); } /** * 设置适